diff --git a/firmware/CMakeLists.txt b/firmware/CMakeLists.txt
index e241a23..c1774c2 100644
--- a/firmware/CMakeLists.txt
+++ b/firmware/CMakeLists.txt
@@ -10,7 +10,7 @@ set(CMAKE_SYSTEM_NAME Generic)
 set(CMAKE_C_COMPILER_WORKS 1)
 set(CMAKE_CXX_COMPILER_WORKS 1)
 
-project("untitled" C CXX)
+project("firmware" C CXX)
 
 include(CMakeListsPrivate.txt)
 
@@ -30,4 +30,4 @@ add_custom_target(
     WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 )
 
-add_executable(Z_DUMMY_TARGET ${SRC_LIST})
+add_executable(Z_DUMMY_TARGET ${SRC_LIST} src/macros.h)
diff --git a/firmware/src/macros.h b/firmware/src/macros.h
new file mode 100644
index 0000000..d6c728e
--- /dev/null
+++ b/firmware/src/macros.h
@@ -0,0 +1,13 @@
+#ifndef FIRMWARE_MACROS_H
+#define FIRMWARE_MACROS_H
+
+#define u8 uint8_t
+#define u16 uint16_t
+#define u32 uint32_t
+#define u64 uint64_t
+#define timeMillis() std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count()
+#define min(a, b) ((a) < (b) ? (a) : (b))
+#define let auto
+#define val const auto
+
+#endif //FIRMWARE_MACROS_H
diff --git a/firmware/src/main.cpp b/firmware/src/main.cpp
index d26b288..45576a5 100644
--- a/firmware/src/main.cpp
+++ b/firmware/src/main.cpp
@@ -1,13 +1,8 @@
 #include <Arduino.h>
 #include <chrono>
 #include <cinttypes>
+#include "macros.h"
 
-#define u8 uint8_t
-#define u16 uint16_t
-#define u32 uint32_t
-#define u64 uint64_t
-#define timeMillis() std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count()
-#define min(a, b) ((a) < (b) ? (a) : (b))
 
 u64 start_time = 0;